1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dbe9c9b4713b022af606ac82fe12da09827889fe739c34da472eb51792d666. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65983144-c279-4a3e-979c-93dab82bd9a3.json and https://artists.proofprofile.net/proofs/artist/65983144-c279-4a3e-979c-93dab82bd9a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Biển Người Nhân Gian (Pháp Sư Mù Original Soundtrack)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2808e16390015509b0bec2440f15ac678aeaa46b65ac7aa7fbf7b29252e50679. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2468296.
Biển Người Nhân Gian (From "Pháp Sư Mù")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca0cd6358d2fc2ff1a31036459dc0740d304cc753683562f85150b43d86cc85. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2469757.
Không Phải Em Đúng Không (Another Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ebf56bef21c2404d1ff62029d8cd1050c698037407216ec9723ede7a284373. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2472527.
Xe Anh Đến Đâu Em Theo Đến Đó (Lofi Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b21ab92c69e31d7ff440d4ac89465c0754ea7901f002a3e7273bdeb6f7e29f9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWBE2252686.
Hậu Phương (Cân Cả Thế Giới Ballad Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad541e139e220ee0dc86b8dc08ea53b7fac7e4de377284616ea3d49f9e3ec0bf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201712527.
Không Phải Em Đúng Không? (Acoustic Version)
Không Phải Em Đúng Không? - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3e9d17e11cea8aaa4b8610097c7d23662b77187c3fdf25045c809cf7c4cb1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011051765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8a8e73b3fda5fb3f0a9bf5ee17b5b38bf32ff5e645b2a0d0142fa49740d80e. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2231854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201111a26d9183064c2a96a992ffd0fa3a19c4363a21ff075d39ef0a0a91eb6e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2499683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd4f786677468776f4909f1ebc0bce097ccfeab3ab70349a9c369c20da0a4fd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:19:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2499528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde054e6f6ef5a03eb5c05050f471d5805a6b3a2a33a2cc0696bec8820fa508a8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2499591.
Tìm Lại Tình Yêu (Nhạc Phim Lời Thì Thầm Từ Quá Khứ)
Lời Thú Nhận Của Eva (Nhạc Phim Lời Thú Nhận Của Eva)
Let It Go The Complete Set (From “Frozen”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc1f7869d357737118494cd2ea31e91e92e17e561abfdeea2a10bdaf98e6c88. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD11467840.
Say Bye! (feat. Pháp Kiều & Dương Hoàng Yến)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771882c2dae510603575082285ea20ebe22dfd85f42cb01a168532f472b2f3eb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US39N2313857.
Say Bye! (feat. Pháp Kiều & Dương Hoàng Yến) - Lofi Minn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5360494c154e4dd54428d39f33fa98489ab27eff19b2905e2fd8abe249770802. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US38Y2415555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a1efdf12ec822f59b0cb241e09d9e9c8de14da67bd184dcec0299360ab56e6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA1M2284589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ed78141ff9f11051b6d12a0e07fa0195f5d46a13c6ea4cb20f28eb83547baf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0R2400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b11853fd17b708661aa2ae2c7b02bf272ec67af5d305f00ed8445684dead5f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0T2466094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a19c1cb67e9b61c0d4d1eeaa6d3423e4f7b6578d9ba87df66e98a78f73d4e38. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0T2466098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4365c0579d5aa36970ea178e003605cc972af9e0042286c68ee3e6aa25426812. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0S2423452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6de6d1f84493faab3ec8078c5307583cec3b4e9b8f2202a3d0fe570d28ee3b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2548584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20187447dccf2f9e7dd53be9acf76ec2c42e931348d8e42806013b9403d10139. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2548588.